Obs. : 2025-07-11
Planet	Ly alpha (photons/cm^2/sec)
Mercury    7.929e+08
Venus      7.937e+08
Earth      7.887e+08
Mars       7.930e+08
Jupiter    7.915e+08
Saturn     8.119e+08
Uranus     7.976e+08
Neptune    8.119e+08
Pluto      7.874e+08